Ball-and-socket (or 360 degree adjustment) - A tilting mechanism used on various mounts which utilizes an ABS ball to swivel mount.

Bass drum beater - A metal shaft topped by a beater ball, which is inserted into a hole in the beater hub of a bass drum pedal.

Bass pedal spring - The spring that connects to the cam assembly and a receptor in the base of the frame of a bass drum pedal, which pulls the pedal back from the head when the pedal board isn't depressed.